Salam,am SAMUEL I joined a certain company and...

We would like to inform that The UAE Labor Law has granted the employer the right to terminate the employment contract without warning or reward during the probationary period, which must not exceed six months, but the labor law obligates the employer to bear the expenses of treating the injured worker. If the employer does not bear the costs of treatment You can file a complaint with the Ministry of Human Resources and Settlement.
Finally, we reiterate that the employer bears the hospital fees in which the worker is treated if the worker was injured inside the workplace or because of work.
Also, the employer is the one who bears the visa, residence and work permit fees.
If the employer refuses to pay these fees, the worker can file a complaint with the Ministry of Human Resources and Emiratisation
Here is the text of the UAE Labor Law, concerning your inquiry:
Article 144
Where a worker sustains a work-related injury or contracts an occupational disease, the employer shall pay for the cost of his treatment in a government or private local medical center until he recovers or is proven disabled. Treatment shall include costs of residence in a hospital or sanatorium, surgical operations, x-ray and medical diagnosis, the purchase of medicines and rehabilitation equipment, and the supply of artificial limbs and other prosthetic appliances for any person who is declared disabled. In addition to the foregoing, the employer shall pay the cost of any transport required in connection with the worker’s treatment.
Article 145
Where an injury prevents a worker from carrying out his work, the employer shall pay him a cash allowance equal to his full pay throughout the period of treatment or for a period of six months, whichever is shorter. Where the treatment lasts for more than six months, the allowance shall be reduced by one-half for a further period of six months or until the worker fully recovers, is declared disabled, or dies, whichever occurs first.
Article 146
The cash allowance referred to in the preceding article shall be calculated on the basis of the last wage received (for monthly, weekly, daily or hourly paid workers), and on the basis of the average daily wage referred to in Article 57(for those paid on piecemeal basis).